Description
provided by eFloras
Perennials, 30–70(–100) cm, faintly aromatic. Stems usually 10+ (rising beyond basal leaves, decumbent), whitish gray, (ca. 5 mm diam., densely leafy) densely hairy. Leaves persistent, gray-green; blades broadly lanceolate, faces woolly-hairy; proximalmost blades 3–8 × 2–6 cm, 2–3-pinnatifid, lobes linear (to 2 mm wide); cauline somewhat reduced, 2–3 × 0.8–1.2 cm; apices acute, faces hairy. Heads (sessile, clustered in glomerules) in (densely leafy) paniculiform to spiciform arrays 10–20(–30) × 1–4 cm. Involucres globose, 3–4.5 × 3–4.5 mm . Phyllaries (lanceolate, margins obscured by indument, hairs straight. Florets: pistillate 5–20; functionally staminate 12–25; corollas pale yellow (broadly tubular), ca. 2 mm, glabrous. Cypselae ellipsoid (faintly nerved), 1–1.5 mm, glabrous.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Oligosporus pycnocephalus Lessing, Linnaea 6: 524. 1831; Artemisia campestris Linnaeus subsp. pycnocephala (Lessing) H. M. Hall & Clements
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
provided by North American Flora
Artemisia pycnocephala (Less.) DC. Prodr. 6: 99. 1837
Oligosportts pycnocephalus Less. Linnaea 6: 524. 1831.
Artemisia pachystachya DC. Prodr. 6: 114. 1837.
Artemisia pycnoslachya Nutt. Trans. Am. Phil. Soc. II. 7: 401. 1841.
A perennial, with a cespitose woody caudex or rootstock; stems decumbent at the base, 2-4 dm. high, densely villous; basal leaves numerous, crowded, 3-7 cm. long, petioled; blades obovate in outline, twice pinnatifid, with rather short, oblanceolate or linear-oblanceolate divisions, densely silkyvillous ; stem-leaves numerous, similar but shorter, short-petioled and less divided; heads in a very dense, spike-like, leafy panicle, erect, sessile; involucre hemispheric, about 3 mm. high and 4 mm. broad; bracts broadly ovate, acutish, densely villous, the outer somewhat shorter; ray-flowers 8-10; corollas fully 1.5 mm. long; achenes 1.5 mm. long; disk-flowers 12-15; corollas elongate-funnelform, 2.5 mm. long, the teeth usually sparingly long-hairy; style tapering from the summit.
Type localitv': California.
Distribution: Sandy beaches from central Oregon to Monterey, California.
- bibliographic citation
- Per Axel Rydberg. 1916. (CARDUALES); CARDUACEAE; TAGETEAE, ANTHEMIDEAE. North American flora. vol 34(3). New York Botanical Garden, New York, NY
Artemisia pycnocephala: Brief Summary
provided by wikipedia EN
Artemisia pycnocephala is a North American species of sagebrush in the sunflower family, known by the common names beach wormwood, sandhill sage, and coastal sagewort.
This plant is native to the western United States coastline extending from central Oregon to southern California.
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